KieRepository holds the old versions of KieModule forever (Bug DROOLS-381).The fix for this bug is that old version can be explicity removed with a call KieRepository.removeKieModule(ReleaseId oldVersionReleaseId).
When there is a KieScanner registered to scan for new versions of releaseId, does that implicitly call kieRepo.removeKieModule(oldVersion)?
If not, is there any events published by KieScanner that releaseId has been upgraded, so that we can explicitly call kieRepo.removeKieModule